baber/WOPTO huggingface dataset:
Patent CA-1195579-A (CA)
Inventor: ARANYI ERNIE
IPC: A61B17/08
Filed: 1982-09-10
Granted: 1985-10-22
Abstract: ABSTRACT OF THE DISCLOSURE A surgical fastening device for fastening body tissue comprises a unitary plastic retainer having a longi-tudinal extension and a hole extending longitudinally through the retainer and its longitudinal extension, the re-tainer being adapted to be positioned on the distal side of the tissue to be fastened and the longitudinal extension of the retainer being laterally expandable about the retainer hole, and a unitary fastener, initially separate from the retainer, and having a distally extending prong which is sufficiently rigid to pass without additional stiffening through a hole pierced in the tissue to be fastened.  The fastener is adapted to be positioned on the proximal side of the tissue to be fastened, a laterally extending barb being provided on a lateral surface of the prong and the fastener being adapted to be moved distally so that the prong and its barb:  1)  move distally through an opening pierced in the tissue to be fastened, and 2) then move dis-tally into the retainer hole, with the barb urging the longitudinal extension of the retainer to expand laterally, until the barb extends distally of the longitudinal exten-sion of the retainer and a proximal surface of the barb non-releasably engages a laterally extending, distal surface of the longitudinal extension of the retainer about the retainer hole, thereby to non-releasbly hold the fastener and retainer together.
Patent CA-1154228-A (CA)
Inventor: BAKER MAURICE R
IPC: E04H12/28
Filed: 1982-09-21
Granted: 1983-09-27
Abstract: LINING SYSTEM FOR CHIMNEYS AND DUCTS            ABSTRACT OF THE DISCLOSURE            There is provided a method of constructing a chimney or duct, which comprises an external structural wall, a protective layer of moving air adjacent to and in-wardly therefrom, and curved ring devices situated in the gas stream which by their shape control the gas flow and prevent the breakdown of the layer of protective air.
Patent CA-1192771-A (CA)
Inventor: FERGUSON HARRY D
IPC: B06B1/02
Filed: 1982-11-04
Granted: 1985-09-03
Abstract: ELECTRICAL SIMULATION OF PERCUSSIVE BELL                        ABSTRACT   An electronic circuit for simulating the sound of a percussive bell struck at a predetermined repetition rate. A realistic electronically generated sound is produced by appropriately modulating two or more audio frequencies with a decaying exponential control signal and thereafter mixing the modulated frequencies. The system comprises a repetition rate generator; a modulation envelope generator; a high and low frequency oscillator; a modulator; and a mixer together with a loud speaker. The repetition rate generator determines the ringing frequency of the simulated bell sound. The modulation envelope generator generates two decaying control signal with differing time constants with the time constant of the low frequency generator usually being greater thanthe time constant of the high frequency generator. Filter networks may be used to eliminate some of the harmonics. Potentiometers may be provided to vary the magnitude of the low and high frequency components at the input to the mixer. An isolation transformer may be used and connected to an external amplifier for audio distribution of the electronically generated sound.
Patent CA-1190610-A (CA)
Inventor: DELLANDE BRIAN W
IPC: H04L7/10
Filed: 1982-11-29
Granted: 1985-07-16
Abstract: AN ENERGY SYNCHRONIZED DEMODULATOR CIRCUIT                         Abstract An energy synchronized demodulator circuit is disclosed having a differential input to single ended converter coupled to a sync detect circuit which provides a detection signal in response to the modulated input signal.  The detection signal is integrated over time, and a threshold detector provides an output when the detection signal exceeds a predetermined threshold level.  A filter provides a constant level output signal indicative of the presence of valid data.  Synchronized demodulation is provided by a correlation between phase or frequency in predetermined bit intervals of the detection signal.  Synchronization is initiated by the initial burst of input signal energy received by the differential input.
Patent CA-1196396-A (CA)
Inventor: SWANSON HILMER I
IPC: H03F3/217
Filed: 1982-12-22
Granted: 1985-11-05
Abstract: Abstract An amplitude modulator (10) is disclosed which generates an amplitude modulated carrier signal by selectively combining varying numbers of other carrier signals.  A circuit (20) is included which provides plural carrier signals of like frequency and phase where the number of carrier signals being provided is dependent upon the level of an input signal.  A combiner circuit (22) combines the plural carrier signals to thereby provide a combined signal which is the desired amplitude modulated carrier signal.  In one embodiment (Fig. 3) the carrier signals which are combined are all equal in amplitude.  In another embodiment (Fig.4) the amplitudes of some of the carrier signals are weighted in a binary progression.  In yet another embodiment (Fig. 9) the carrier signals are all frequency modulated whereby the output signals has both a varying frequency and amplitude.
Patent CA-1193000-A (CA)
Inventor: YOSHIDA HAJIME
IPC: G06T3/00
Filed: 1983-03-10
Granted: 1985-09-03
Abstract: ABSTRACT OF THE DISCLOSURE      The target screen of a television camera is divided into a matrix in horizontal and vertical directions to receive image data signals as divided in the matrix for subsequent processing. A memory circuit having the same number of memory elements as the divisions of the matrix, a circuit for scanning addresses of the memory elements of the memory circuit in synchronization with scanning in the television camera, a circuit for preliminarily memorizing signals, which are used to discriminate which of the image data signals are processed or not, on memory elements of the memory circuit with addresses corresponding to the image data signals respectively and a circuit for generating a control signal based on the memory data signal from the memory circuit to determine which image data signals is used or not in response to scanning of the target screen of the television camera is provided.  A circuit for controlling supply of the image data signal from the television camera to the processing apparatus is also provided.
Patent CA-1209162-A (CA)
Inventor: AVIDAN AMOS A
IPC: B01J8/26
Filed: 1983-03-30
Granted: 1986-08-05
Abstract: FLUIDIZED BED REACTOR AND PROCESS FOR              OXYGENATES TO HYDROCARBONS CONVERSION            Abstract A process for converting lower alcohols and oxygenates thereof either to gasoline-grade hydrocarbons or to olefins is improved by providing a reactor vessel having substantially no freeboard or a relatively short freeboard.  The elimination or substantial elimination of the freeboard in the reactor minimizes contact time of the higher alkane and alkene hydrocarbons and aromatics-containing catalyst with the feed, thereby preventing the formation of additional higher hydrocarbons and aromatics, including durene.  The catalyst is separated from the gaseous reaction products in a separate stripper/separator vessel by solids-gas separation means which return the catalyst to a fluidized bed in the downstream section of the stripper/separator vessel.  The paraffins, olefins, naphthenes and aromatics are stripped from the catalyst in the fluidized bed of the stripper/separator vessel.
Patent CA-1215038-A (CA)
Inventor: LAPIERRE RENE B
IPC: B01J29/08
Filed: 1983-05-16
Granted: 1986-12-09
Abstract: METHOD FOR PREPARING ACID STABLE ZEOLITES AND         HIGH SILICA ZEOLITES PREPARED BY IT          ABSTRACT        Zeolite Y and other faujasite type zeolites are made stable to acid by calcination in a steam-containing atmosphere with a slow, controlled heating rate in the temperature range at which chemically bound water in the zeolite is given off, generally from 500 to 650°C.  The stabilized product may be extracted with acid to produce a zeolite having a higher silica:alumina ratio.  The high silica forms of zeolite ZSM-20 which may be produced by this method are hitherto unknown materials.
Patent CA-1197478-A (CA)
Inventor: CHIVRALL GRAHAM B
IPC: B01D45/12
Filed: 1983-05-18
Granted: 1985-12-03
Abstract: ABSTRACT OF THE DISCLOSURE "IMPROVEMENTS IN AND RELATING TO CYCLONE SEPARATORS"     A method and apparatus for separating a fluid containing particulate matter into a plurality of fractions.   In order to carry out the separation of both heavy and light contaminants from the fluid in an efficient manner, there is provided apparatus comprising a reverse vortex cyclone separator and a Uniflow cyclone separator.  Heavy contamination is removed from fluid admitted to the reverse vortex cyclone separator at an end remote from the fluid inlet and fluid substantially cleaned of heavy contaminants passes from the reverse vortex cyclone separator to the Uniflow cyclone separator by way of an axial passage and/or circumferential passages disposed at the inlet end of the reverse vortex separator.  Respective outlets for the accepts and rejects are provided in the Uniflow separator at a location remote from the inlet.   The respective chambers of the reverse and Uniflow separators are preferably conical and coaxial with one another with the Uniflow separator disposed vertically above the reverse vortex separator.
Patent CA-1199293-A (CA)
Inventor: SHINN JOHN H
IPC: C10G1/00
Filed: 1983-05-31
Granted: 1986-01-14
Abstract: ABSTRACT OF THE DISCLOSURE A process for hydroprocessing a heavy hydrocarbonaceous oil feed in two stages in which residual components boiling above 500°C are recycled from the second stage to the first.  The heavy oil can contain added solids such as porous metal getter particles, dispersed hydrogenation catalysts, and/or coal or coal-containing particles.
Patent CA-1186063-A (CA)
Inventor: GRAFE ROBERT J
IPC: G06F13/00
Filed: 1983-08-24
Granted: 1985-04-23
Abstract: TEXT PROCESSING SYSTEM WITH COMMUNICATIONS DATA SAVE FACILITY                       Abstract In a text processor including a communications facility, different tasks, such as typing tasks and communications tasks are entered into the machine from different program diskettes.  As each is so entered, in view of the fact that main memory space is limited, it overlays control data in the main memory relating to the previous task.  In a communications session, the operator has to build a queue of documents for sending under the control of communications foreground control (CFC) and communications background control (CBC) blocks in the main memory,  If the operator is required to terminate this task before its completion, his queue data is lost as it is overlaid by control data relating to a new task that is entered, so on return to the communications task, he has to start from the begin-ning.  In order to enable him to exit the communica-tions task without losing the queue data, an arrange-ment is employed whereby this data can be entered on to the communications program diskette prior to termina-tion of a communications session.
Patent CA-1213331-A (CA)
Inventor: BROUGHTON ROGER
IPC: A61B5/0496
Filed: 1983-10-14
Granted: 1986-10-28
Abstract: TITLE       CONJUGATE EYE MOVEMENT DETECTOR FOR SLEEP ANALYSIS                          INVENTORS                       Roger Broughton Bernardo Da Costa ABSTRACT OF THE DISCLOSURE         The eye movement detector detects events occurring during the electro-oculogram (EOG) signal in which components of the signal having a predetermined rise time, are coincident with components of the same sig-nal having a predetermined amplitude.
Patent CA-1200684-A (CA)
Inventor: GOLDFARB LOUIS
IPC: C09K5/06
Filed: 1984-01-19
Granted: 1986-02-18
Abstract: HEAT STORAGE SYSTEM                           Abstract A heat storage system which is comprised of calcium chloride hexahydrate as the storage medium and a nucleating agent, said nucleating agent being a mixture of dolomite and calcium hydroxide.
Patent CA-1225243-A (CA)
Inventor: COX MICHAEL
IPC: C22B23/02
Filed: 1984-01-20
Granted: 1987-08-11
Abstract: ABSTRACT                    WINNING METAL FROM ORE      Copper is won from chalcopyrite ore (copper/iron sulphide) containing Cu(II) and Fe(III), which respectively prefer square planar and octahedral co-ordination.  A vapourised tetradentate (square-planar) Schiff base reagent is passed through a fluidised bed of oxidatively roasted chalcopyrite, and ignores the iron but forms a (volatile) copper complex.  This is blown to a decomposition chamber containing a hot probe on which the complex decomposes, leaving the desired copper on the probe and liberating the Schiff base reagent for recycling.
Patent CA-1222035-A (CA)
Title: Bus-configured local area network with data exchange  capability
Inventor: YAHATA HARUKI
IPC: H04Q11/04
Filed: 1984-03-30
Granted: 1987-05-19
Abstract: Abstract of the Disclosure A local area network in which a plurality of local equipments, each having one or more terminals connected thereto, are connected to different points of a common signal transmission path leading from a central equipment.  The central equipment sends out data signals addressed to the local equipments to the common path on a time division basis. Each local equipment sends a data signal from the terminals to the central equipment in response to the reception of a self-addressed data signal from the central equipment.  To avoid a collision or overspace between the data signals transmitted from local equipments the central equipment sends out control signals addressed to the local equipments in response to signals from the local equipments.  Each local equipment controls the transmission start timing of the data signal to the central equipment in response to the self-addressed control signal.
Patent CA-1228958-A (CA)
Inventor: ANTONSON DOUGLAS M
IPC: B24D9/08
Filed: 1984-06-13
Granted: 1987-11-10
Abstract: ABSTRACT      A pull-apart mounting hub for mounting a scrub-bing pad or the like to a drive disc on a power-driven scrubbing machine or the like.  The hub has two parts:  a base mounted to the drive disc, the base having a cylindrical collar and an annular shoulder; and a split-ring retainer.  The split-ring retainer is resilient and generally cylindrical, and includes a retaining flange extending radially outwardly for re-taining the pad, an annular lip engageable with the annular shoulder of the collar to lock the two pieces together, and a tab adjacent the split for urging the lip adjacent the split out of engagement with the an-nular shoulder of the collar to enable the retainer to be removed from the collar.
Patent CA-1251102-A (CA)
Inventor: HUHN KARL
IPC: D06M13/02
Filed: 1984-08-10
Granted: 1989-03-14
Abstract: ABSTRACT OF THE DISCLOSURE     A method for impregnating textile materials made from organic fibers is provided herein.  The method includes the steps of impregnating the textile materials wtih a composition containing a crosslinkable diorganopolysiloxane, an organo-siloxane having at least 3 Si-bonded hydrogen atoms per molecule, a crosslinking catalyst, and an organo(poly)siloxane having 1 or 2 Si-bonded hydrogen atoms and from 2 to 8 silicon atoms per molecule, in which the composition is free of a filler having a surface area greater than 50 g/m2 in an amount greater than 1 weight percent based on the weight of the organosilicon compounds and thereafter crosslinking the crosslinkable diorganopoly-siloxane.  The textile materials which are treated as described above have a softer hand than those treated according to prior art methods.
Patent CA-1253349-A (CA)
Inventor: FRUSHOUR ROBERT H
IPC: C09K3/14
Filed: 1984-08-16
Granted: 1989-05-02
Abstract: ABSTRACT OF THE DISCLOSURE           Diamond or CBN polycrystalline abrasive grit useful in tools for  grinding  or  cutting  is  made by  size  reducing  and  leaching non-diamond  or  non-CBN  material   from  a  compact  to  provide polycrystalline abrasive grit having a selected and having a network of inter-connected, empty pores dispersed throughout.
Patent CA-1229407-A (CA)
Inventor: WEBER HERBERT
IPC: H04N5/445
Filed: 1984-08-17
Granted: 1987-11-17
Abstract: Abstract of the Disclosure A system for transmitting television signals on a radio link. The system includes a transmitter having a modulator for modulating a carrier signal to produce a vestigial sideband amplitude modulated signal for transmission. The modulator includes a first converter for converting the frequency of video signals to an intermediate frequency and a second converter for converting the intermediate frequency of the video signals to a radio frequency. The system further includes a receiver having a demodulator for demodulating a received vestigial sideband amplitude modu-lated signal. The modulator includes a Nyquist filter connected between the first and second converters, and the demodulator includes a filter having a rectangular char-acteristic for processing the signal to be demodulated.
Patent CA-1218479-A (CA)
Inventor: GELINAS BRENDA N
IPC: C08G18/40
Filed: 1984-09-13
Granted: 1987-02-24
Abstract: TITLE       Improved Air Drying Coating Composition of an Acrylic and Alkyd Polymer Blend and a Polyisocyanate ABSTRACT         A coating composition that contains as the film-forming binder an acrylic vinyl oxazoline polymer, an alkyd resin and an additive of a polyisocyanate of the formula   where R7 is a hydrocarbon group having six carbon atoms; ultraviolet light stabilizers, an organic solvent and optionally a plasticizer; this compo-sition cures rapidly at ambient temperatures to a tough, durable, weatherable, scratch resistant and gasoline resistant finish particularly useful for repairing finishes of automobiles or trucks.
Patent CA-1240837-A (CA)
Inventor: CHUNSHAN PAN
IPC: C21B9/06
Filed: 1984-09-27
Granted: 1988-08-23
Abstract: A B S T R A C T     Chequer-brick for vertical cowpers and cowper chequerwork constructed from these chequer-bricks A chequer-brick (20, 22) of cruciform shape is provided for the chequerwork of vertical cowpers.  The brick (20, 22) comprises two cross-beams (11, 12) of different breadth and the same length with four recesses (13, 14, 15, 16) arranged in the points of the cross respectively and a further centrally located recess (17). The bricks (20, 22) are laid one on top of the other so that the recesses and the intersections between the cross-beams form vertical conduits.
Patent CA-1231960-A (CA)
Inventor: DRAHNAK TIMOTHY J
IPC: C08L83/07
Filed: 1984-10-31
Granted: 1988-01-26
Abstract: ABSTRACT           This invention relates to a hydrosilation process involving the reaction of a compound containing silicon-bonded hydrogen with a compound containing aliphatic unsaturation in the presence of actinic radiation, and to compositions which contain an actinic radiation-sensitive catalyst that are useful in said process.          Numerous patents teach the use of various complexes of cobalt, rhodium, or platinum as catalysts for accelerating the thermally-activated addition reaction (hydrosilation) between a compound containing silicon-bonded hydrogen and a compound containing aliphatic unsaturation.  However, processes for accelerating the ultraviolet radiation activated addition reactions between these compounds are rare.          This invention involves a process for the actinic radiation-activated addition reaction of a compound contain-ing silicon-bonded hydrogen with a compound containing aliphatic unsaturation, (hydrosilation), the improvement comprising using, as a platinum hydrosilation catalyst, an (?-cyclopentadienyl)tri(.sigma.-aliphatic)platinum complex.  The invention further involves novel compositions, capable of undergoing hydrosilation, containing the aforementioned platinum complex.          Advantages of the platinum complex in accelerating the radiation-activated hydrosilation process include:         (1)  the reaction composition will not react prematurely or readily in the absence of actinic radiation;      (2)  since heat is not required, the addition reaction can be carried out on the surface of a heat-sensitive substrate without adversely affecting the substrate; and (3)  radiation curing consumes less energy than does thermal curing.
Patent CA-1234139-A (CA)
IPC: C07C69/736
Filed: 1985-01-09
Granted: 1988-03-15
Abstract: ABSTRACT         Compounds, and processes to prepare them, of the formula II                      (II) wherein R3 is C1-C4-alkoxy, C2-C6-alkenyloxy, C2-C4-alkynyloxy, C1-C4-haloalkoxy or C3-C5-alkoxyalkoxy, and X, Y and Z independ-ently of one another are each hydrogen, halogen, C1-C4-alkyl, C1-C4-alkoxy, C1-C4-haloalkyl, C1-C4-haloalkoxy, -S(O)n-C1-C4-alkyl, -S(O)n-C1-C4-haloalkyl, where n is 0, 1 or 2, or they are each C(O)OR4, where R4 is hydrogen or C1-C4-alkyl, or they are each NO2, CN or NR5R6, where R5 and R6 independently of one another are each hydrogen, C1-C4-alkyl, C1-C4-alkylcarbonyl, C1-C4-haloalkylcarbonyl or C1-C4-haloalkylsulfonyl, with the proviso that, when the phenoxy group is in the p-position, R3 is C1-C4-alkoxy, and two of the substituents X, Y and Z are hydrogen, the third substituent is not hydrogen, fluorine, chlorine, bromine or trifluoromethyl are described.  These compounds find use in the preparation of related  dihydropyrones of the formula I              in which R1 and R2 represent either C1-C4 alkyl groups or one is hydrogen, or together they form a C2-C6 alkylene bridge.  These dihydropyrones can be used in combating weeds.
Patent CA-1257942-A (CA)
Inventor: PEPPMOELLER REINMAR
IPC: C08L93/04
Filed: 1985-02-11
Granted: 1989-07-25
Abstract: ABSTRACT      A mixture is disclosed comprising A)  a polymer comprising by weight at least 80% of at least one of acrylamide or methacrylamide, up to 5% of at least one of acrylonitrile, methacrylonitrile, vinyl acetate, maleic acid, diisobutAne, or a (meth)acrylic acid ester of a monovalent primary alcohol with 1 to 4 carbon atoms, and 5 to 20% of at least one of acrylic acid or methacrylic acid, and at least one of (B)  a completely saponified natural resin or (C)  a partially saponified natural resin, (A) being present in 3 to 50% and (B), (C) or (B) plus (C) being present in 97 to 50% by weight of (A) plus (B), (C) or (B) plus (C).          Such mixtures are useful in the production of paper and cardboard in order to reduce the absorbency and improve the dry strength of those products.
Patent CA-1232898-A (CA)
Inventor: BALLACHEY JOHN M
IPC: E21B15/04
Filed: 1985-02-19
Granted: 1988-02-16
Abstract: ABSTRACT OF THE DISCLOSURE     A guide mat for a slant service or drill rig.  The guide mat comprises rearward and forward portions and an open area in the rearward portion which is used to allow access to a wellhead.  Adjustable pedestals are provided which move in orthogonal planes to the plane of the guide mat and thereby allow for convenient pinning of the mast of the rig to the mat such that the mast is maintained in its correct operating position while the drilling and/or service operations are underway.
Patent CA-1224563-A (CA)
Inventor: SHAFAI LOTFOLLAH
IPC: H01Q13/06
Filed: 1985-02-21
Granted: 1987-07-21
Abstract: TITLE                 A PARABOLOID REFLECTOR ANNTENNA FEED               HAVING A FLANGE WITH TAPERED CORRUGATIONS                               INVENTOR                           Lotfollah Shafai Ahmed A.A. Kishk Ernest Bridges Apisak Ittipiboon ABSTRACT OF THE DISCLOSURE         The antenna feed includes a waveguide radiator with a conduc-tive flange positioned about the waveguide near its radiating end.  The flange includes one or more corrugations which each have tapered walls and which is truncated at its root and crest by a flat or curved plane.          The corrugations thus may have a trapezoidal cross-section or a curved root and crest cross-section.  The curvature may be sinusoidal.